RECON: TNO occultation with 14UE229

Event between 14UE229 and star GA1040:00197585 with event index number of 236542

Geocentric closest approach at 2019/02/03 23:05:00 UTC

J2000 position of star is 02:04:01.9 +15:12:02
Equinox of date position of star is 02:05:04.2 +15:17:30
Stellar brightness G=16.6, use SENSEUP=128
Star is 89 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=24.4

TNO is 41.8 AU from the Sun and 42.0 AU from the Earth.
The TNO is moving 10.0 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 723 seconds.
The 1-sigma cross-track error in the shadow position is 3322 km.

The TNO has an absolute magnitude Hv=8.0
Diameter=152.1 km assuming a 5% albedo -- 15.2 sec chord
Diameter=62.1 km assuming a 30% albedo -- 6.2 sec chord
Dynamical classification is ERR2LARGE
 
 
 
 
 
 
 
 

Star training set for 14UE229, (2019/02/03 23:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.1 +16:32:46  0.8 36.50 125
6Bet Ari       01:55:41.9 +20:54:02  2.6  6.03  89
19 Ari         02:14:06.0 +15:22:06  5.7  2.18  91
PPM 117935     02:06:26.4 +15:37:42  8.4  0.47  90
PPM 117928     02:06:02.2 +15:23:11  8.6  0.25  89
14UE229        02:05:04.2 +15:17:30 16.6        89
Positions are for equinox of date

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14UE229, (2019/02/03 23:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 36.50 125
6Bet Ari       01:54:38.5 +20:48:27  2.6  6.03  89
19 Ari         02:13:03.4 +15:16:47  5.7  2.18  91
PPM 117935     02:05:23.9 +15:32:16  8.4  0.47  90
PPM 117928     02:04:59.8 +15:17:44  8.6  0.25  89
14UE229        02:04:01.9 +15:12:02 16.6        89
Positions are for J2000

Event circumstances last updated at 2019/01/31 18:00:42 UT

Marc W. Buie, Southwest Research Institute

RECON